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69 lines
2.6 KiB
GLSL
69 lines
2.6 KiB
GLSL
#version 330 core
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#include <globals.glsl>
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in vec3 f_pos;
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flat in uint f_pos_norm;
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in vec3 f_col;
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in float f_light;
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out vec4 tgt_color;
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#include <sky.glsl>
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#include <light.glsl>
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void main() {
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// First 3 normals are negative, next 3 are positive
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vec3 normals[6] = vec3[](vec3(-1,0,0), vec3(1,0,0), vec3(0,-1,0), vec3(0,1,0), vec3(0,0,-1), vec3(0,0,1));
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// TODO: last 3 bits in v_pos_norm should be a number between 0 and 5, rather than 0-2 and a direction.
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uint norm_axis = (f_pos_norm >> 30) & 0x3u;
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// Increase array access by 3 to access positive values
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uint norm_dir = ((f_pos_norm >> 29) & 0x1u) * 3u;
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// Use an array to avoid conditional branching
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vec3 f_norm = normals[(f_pos_norm >> 29) & 0x7u];
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vec3 cam_to_frag = normalize(f_pos - cam_pos.xyz);
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vec3 surf_color = /*srgb_to_linear*/(f_col);
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vec3 k_a = 0.5 * surf_color;
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vec3 k_d = 0.5 * surf_color;
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vec3 k_s = 0.5 * surf_color;
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float alpha = 2.0;
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vec3 emitted_light, reflected_light;
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float point_shadow = shadow_at(f_pos, f_norm);
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get_sun_diffuse(f_norm, time_of_day.x, cam_to_frag, k_a * f_light * point_shadow, k_d * f_light * point_shadow, k_s * f_light * point_shadow, alpha, emitted_light, reflected_light);
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lights_at(f_pos, f_norm, cam_to_frag, k_a * f_light * point_shadow, k_d * f_light * point_shadow, k_s * f_light * point_shadow, alpha, emitted_light, reflected_light);
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// float point_shadow = shadow_at(f_pos, f_norm);
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// vec3 point_light = light_at(f_pos, f_norm);
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// vec3 light, diffuse_light, ambient_light;
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// get_sun_diffuse(f_norm, time_of_day.x, cam_to_frag, k_a * f_light, k_d * f_light, k_s * f_light, alpha, emitted_light, reflected_light);
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// get_sun_diffuse(f_norm, time_of_day.x, light, diffuse_light, ambient_light, 1.0);
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// float point_shadow = shadow_at(f_pos, f_norm);
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// diffuse_light *= f_light * point_shadow;
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// ambient_light *= f_light * point_shadow;
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// vec3 point_light = light_at(f_pos, f_norm);
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// light += point_light;
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// diffuse_light += point_light;
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// reflected_light += point_light;
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// reflected_light += light_reflection_factor(norm, cam_to_frag, , vec3 k_d, vec3 k_s, float alpha) {
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// light_reflection_factorplight_reflection_factor
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// vec3 surf_color = illuminate(srgb_to_linear(f_col), light, diffuse_light, ambient_light);
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surf_color = illuminate(emitted_light, reflected_light);
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float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);
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vec4 clouds;
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vec3 fog_color = get_sky_color(cam_to_frag, time_of_day.x, cam_pos.xyz, f_pos, 1.0, true, clouds);
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vec3 color = surf_color;
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// vec3 color = mix(mix(surf_color, fog_color, fog_level), clouds.rgb, clouds.a);
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tgt_color = vec4(color, 1.0);
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}
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